Re: GENERIC 5.1.2 panics on 7248/120

[Matt Thomas <matt%3am-software.com@localhost>]

On Jul 20, 2012, at 7:43 AM, Andy Ruhl wrote:

> On Fri, Jul 20, 2012 at 3:35 AM, Hisanobu Tomari 
> <htomari%myopera.com@localhost> wrote:
>> 
>> 0x00577c10: at panic+0x210
>> 0x00577c60: at trap+0x108
>> 0x00577cf0: kernel DSI read trap @ 0x20800a30 by turnstile_block+0x150:
>> srr1=0x9
>> 032
>>            r1=0x577db0 cr=0x44882228 xer=0 ctr=0x2ea6b0
>> dsisr=0x40000000
>> 0x00577db0: at turnstile_block+0xd8
>> 0x00577de0: at rw_vector_enter+0x1e4
>> 0x00577e40: at prop_dictionary_get+0x2c
>> 0x00577e70: at gen_fwpath+0x40
>> 0x00577ea0: at cpu_rootconf+0x330
>> 0x00577ee0: at main+0x1fc
>> 0x00577f30: at 0x1000f0
>> db>
> 
> I'm no kernel hacker, but it looks like it's the kernel probing
> hardware and it ran into a problem.

Not hardware, it's done with by now.
0x20800a30 is way above physical memory (only 0x02000000 of that) and
way below the KERNEL_SRs (mapped kernel memory).

i'd look at the instruction at turnstile_block+0x150 and see
what it was trying access.